Newly designed printer head casing for two (to reduce the noise) axial fans (40x40x10mm, Papst 414F, 24V, 5400rpm, 26dB), one touch probe (here BL Touch) and one radial blower.
Radial blower support/base plate to be attached/fixed to the casing, following the original pattern and size of screw holes.
Both axial fans are installed in flow direction (one gives overpressure, the other one the underpressure).
Attention!!! Prior to the installation of the radial blower, the blower fixing eye which shows to the inside needs to be cut/modified to avoid clash with the stepper drive on the upper right corner. Please refere to one of the pics!!!
Radial blower Support, copied and modified: https://www.thingiverse.com/thing:4899808
Touch Probe Support, copied and modified: https://www.thingiverse.com/thing:5183223
Experience so far: 1kg filament and several hours printing and no problems detected. It's much quieter than the original.